Sancycline is primarily used in research settings to study its antibiotic properties, particularly against bacterial infections. It serves as a precursor in the synthesis of more complex tetracycline antibiotics, which are widely used to treat a variety of infections. Additionally, it is explored for its potential anti-inflammatory and neuroprotective effects, making it a subject of interest in medical and pharmacological studies. Its role in inhibiting matrix metalloproteinases also suggests potential applications in treating conditions like cancer and arthritis.